-Found, and implemented a fix for the combatlog stuck bug. (Rarely happens here, but it happened a few times.)

-Empty string as the type i spells.lua is a bad idea, just spent an hour tracking down a bug because of that.
--(it errors in the sorters), added a type everywhere, and also documented it.
(Commit ported from TBC version)

Rect.lua

@@ -6,6 +6,11 @@ local aceConfig = LibStub("AceConfig-3.0");
 local libSharedMedia = LibStub("LibSharedMedia-3.0");
 local libDRData = LibStub('DRData-1.0');
 
+Rect.CombatlogFixTimerData = {
+	["lasttick"] = 0,
+	["timesinceclear"] = 0
+}
+
 Rect.MovableFrames = nil
 
 Rect.targets = {
@@ -194,15 +199,16 @@ function Rect:OnInitialize()
 	aceConfig:RegisterOptionsTable("Rect", self:GetRectOptions());
 	aceCDialog:AddToBlizOptions("Rect");
 	self:RegisterChatCommand("Rect", "ChatCommand");
+
 end
 
 function Rect:OnEnable()
 	self:Reset()
-	self:RegisterEvent("PLAYER_ENTERING_WORLD")
-	self:RegisterEvent("ZONE_CHANGED_NEW_AREA")
-	self:RegisterEvent("COMBAT_LOG_EVENT_UNFILTERED")
-	self:RegisterEvent("PLAYER_TARGET_CHANGED")
-	self:RegisterEvent("PLAYER_FOCUS_CHANGED")
+	self:RegisterEvent("PLAYER_ENTERING_WORLD");
+	self:RegisterEvent("ZONE_CHANGED_NEW_AREA");
+	self:RegisterEvent("COMBAT_LOG_EVENT_UNFILTERED");
+	self:RegisterEvent("PLAYER_TARGET_CHANGED");
+	self:RegisterEvent("PLAYER_FOCUS_CHANGED");
 	self:CreateFrames("target");
 	self:CreateFrames("focus");
 	self:CreateDRFrames("targetdr");
@@ -210,15 +216,41 @@ function Rect:OnEnable()
 	self:CreateDRFrames("selfdr");
 	self:ApplySettings();
 	self.targets["self"] = UnitGUID("player");
+
+	--cause, and basic fix from:
+	--from http://www.arenajunkies.com/topic/125096-combat-log-error-screwing-up-your-addons-supposed-fix/
+	local f = CreateFrame("Frame", nil, UIParent); 
+	f:SetScript("OnUpdate", function() self:CombatLogClearFix() end);
 end
 
+function Rect:CombatLogClearFix()
+	--delta is in seconds
+	local delta = GetTime() - Rect.CombatlogFixTimerData["lasttick"];
+
+	--this will happen on the first run, this is here, becouse on the first test, 
+	--the first clear on load just bugged the addon, until the second clear
+	if delta > 30 then
+		return;
+	end
+
+	local tslc = Rect.CombatlogFixTimerData["timesinceclear"] + delta;
+
+	--30 seconds should be enough
+	if tslc >= 30 then
+		CombatLogClearEntries();
+		tslc = 0;
+	end
+
+	Rect.CombatlogFixTimerData["timesinceclear"] = tslc;
+	Rect.CombatlogFixTimerData["lasttick"] = GetTime();
+end
 
 function Rect:OnDisable()
-	self:UnregisterEvent("PLAYER_ENTERING_WORLD")
-	self:UnregisterEvent("ZONE_CHANGED_NEW_AREA")
-	self:UnregisterEvent("COMBAT_LOG_EVENT_UNFILTERED")
-	self:UnregisterEvent("PLAYER_TARGET_CHANGED")
-	self:UnregisterEvent("PLAYER_FOCUS_CHANGED")
+	self:UnregisterEvent("PLAYER_ENTERING_WORLD");
+	self:UnregisterEvent("ZONE_CHANGED_NEW_AREA");
+	self:UnregisterEvent("COMBAT_LOG_EVENT_UNFILTERED");
+	self:UnregisterEvent("PLAYER_TARGET_CHANGED");
+	self:UnregisterEvent("PLAYER_FOCUS_CHANGED");
 	self.Reset();
 end
 

data/cooldowns.lua

@@ -40,6 +40,7 @@ function Rect:ReassignCds(which)
 		if (db[which]["colorframeenabled"]) then
 			local colorframe = Rect.frames[which][i]["colorframe"];
 			--self:Print(v["spellID"] .. " cat: " .. v["spellCategory"]);
+			
 			colorframe:SetBackdropColor(db["color"][v["spellCategory"]]["r"], 
 					db["color"][v["spellCategory"]]["g"], 
 					db["color"][v["spellCategory"]]["b"], 

data/spells.lua

@@ -2,6 +2,8 @@
 -- [42292] ={120, nil,   120,     120,     120,     0,    "", "anticc", false}, --PvP Trinket
 -- spellid   cd  reset spec1cd, spec2cd, spec3cd, spec, class,  type,   ispetspell --comment
 
+--!IMPORTANT type, has to match one from the list below, nor can it be empty, you will get Lua errors from Sorters!
+
 --spellid -> the spell's id
 --cd -> base cooldown for the spell, this will be used until the spec is detected (if its on, else this will be used)
 --		NOTE: cds are in seconds, and if the tooltip shows like 2.1M then you convert it like this: 2.1 * 60 = 126